长江中游窑监河段航道整治工程效果分析

Effect analysis of Yaojian reach waterway regulation project in the middle Yangtze River

窑监河段为长江中游著名的碍航河段,根据《长江干线航道发展规划总体纲要》,该河段2020年航道的建设标准为3.5 m×150 m×1 000 m(水深×航宽×弯曲半径),通航保证率为98%。考虑到三峡工程运行以及防洪等外部因素的影响,窑监河段的治理采取远近结合、分期实施的原则,从2009年初开始陆续实施一期工程和乌龟洲守护工程。工程实施以来,航道条件明显改善,取得了较好的工程效果。结合已有研究成果和工程实施以来的资料,对工程实施后的河道变化、航道条件等进行分析,并对该河段治理经验进行总结。

Yaojian reach is a famous navigation blocking reach in the middle Yangtze River. The construction standard by 2020, set by the General Outline of the Yangtze River Main Channel Developing Plan, is 3.5 m × 150 m × 1 000 m（ depth x width x bending radius） and at a navigation assurance rate of 98%. Considering the external factors such as the operation of the TGP and flood prevention, we have implemented Yaojian reach 1 st phase construction and Wuguizhou protection construction successively since 2009 on the principles of ＂combining the future and recent, and implementing by stages＂. The navigation channel has been improved obviously and satisfactory effect has been achieved the construction implementation. Based on the existed research achievements and data since the project implementation, we analyze the channel variation and channel condition after the project implementation and summarize the regulation experience for the reach.